[U-Boot] [Patch v3 5/7] Setup POST word for generic mpc85xx

[York Sun]

Using PIC TFRR register for post word load/store for generic MPC85xx.

Signed-off-by: York Sun <yorksun at freescale.com>
---
 arch/powerpc/cpu/mpc85xx/cpu.c |   19 +++++++++++++++++++
 1 files changed, 19 insertions(+), 0 deletions(-)

diff --git a/arch/powerpc/cpu/mpc85xx/cpu.c b/arch/powerpc/cpu/mpc85xx/cpu.c
index fc5d951..bf3d899 100644
--- a/arch/powerpc/cpu/mpc85xx/cpu.c
+++ b/arch/powerpc/cpu/mpc85xx/cpu.c
@@ -286,6 +286,25 @@ void mpc85xx_reginfo(void)
 	print_lbc_regs();
 }
 
+#ifdef CONFIG_POST
+
+__attribute__((weak))
+void post_word_store(ulong a)
+{
+	void *save_addr = (void *)
+		(CONFIG_SYS_MPC8xxx_PIC_ADDR + offsetof(ccsr_pic_t, tfrr));
+	out_be32(save_addr, a);
+}
+__attribute__((weak))
+ulong post_word_load(void)
+{
+	void *save_addr = (void *)
+		(CONFIG_SYS_MPC8xxx_PIC_ADDR + offsetof(ccsr_pic_t, tfrr));
+	return in_be32(save_addr);
+}
+
+#endif /* CONFIG_POST */
+
 #if CONFIG_POST & CONFIG_SYS_POST_MEMORY
 
 /* Board-specific functions defined in each board's ddr.c */
-- 
1.7.0.4